Shapes of Molecules

Chemistry
9th Edition
ISBN:9781133611097
Author:Steven S. Zumdahl
Publisher:Steven S. Zumdahl
Chapter8: Bonding: General Concepts
Section: Chapter Questions
Problem 152CP: Think of forming an ionic compound as three steps (this is a simplification, as with all models):...
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Chloro-
CH.CI
methane
CO
Carbon
Dioxide
Potassium
lodide
KI
Dichloro-
CH.CL
methane
Nitrogen
Oxygen
Transcribed Image Text:Chloro- CH.CI methane CO Carbon Dioxide Potassium lodide KI Dichloro- CH.CL methane Nitrogen Oxygen
Identifying Polar and Non-Polar Bonds:
To determine if a compound is Polar or Non- Polar, you must consider the electronegativity
difference within each bond and the 3D shape of the compound. To classify the chemical
bond between the atoms calculate the difference in electronegativity between the atoms (Use
Table S). If the electronegativity difference is above 1.7 then the bond is Ionic. If the
electronegativity difference is below 0.5 then the bond is Nonpolar. Electronegativity
differences ranging between 0.5 and 1.7 are Polar bonds.
Polar Bond
lonic
Non-Polar
Shapes of Molecules
Trigonal
Tetrahedral
Linear
Bent
Pyramidal
INSTRUCTIONS:
Classify each f the bond in the chart as wither: IONIC, POLAR OR NON-POLAR.
For each compound: a) Determine the
type
of bond
present
b) Draw the electron 'dot diagram [Lewis structure]
Bond Type
Shape of
Molecule
EN
Name
Formula
Lewis
Dot
Difference
[polar/non-polar
covalent or ionic
Diagram
Hydrogen
Nonpolar covalent
Iodine
I2
Sodium
NazN
Nitride
Hydrogen
HCI
Polar
Chloride
Covalent
Transcribed Image Text:Identifying Polar and Non-Polar Bonds: To determine if a compound is Polar or Non- Polar, you must consider the electronegativity difference within each bond and the 3D shape of the compound. To classify the chemical bond between the atoms calculate the difference in electronegativity between the atoms (Use Table S). If the electronegativity difference is above 1.7 then the bond is Ionic. If the electronegativity difference is below 0.5 then the bond is Nonpolar. Electronegativity differences ranging between 0.5 and 1.7 are Polar bonds. Polar Bond lonic Non-Polar Shapes of Molecules Trigonal Tetrahedral Linear Bent Pyramidal INSTRUCTIONS: Classify each f the bond in the chart as wither: IONIC, POLAR OR NON-POLAR. For each compound: a) Determine the type of bond present b) Draw the electron 'dot diagram [Lewis structure] Bond Type Shape of Molecule EN Name Formula Lewis Dot Difference [polar/non-polar covalent or ionic Diagram Hydrogen Nonpolar covalent Iodine I2 Sodium NazN Nitride Hydrogen HCI Polar Chloride Covalent
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